CN202677706U - Gasification methanol simulation training platform - Google Patents
Gasification methanol simulation training platform Download PDFInfo
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- CN202677706U CN202677706U CN 201220365655 CN201220365655U CN202677706U CN 202677706 U CN202677706 U CN 202677706U CN 201220365655 CN201220365655 CN 201220365655 CN 201220365655 U CN201220365655 U CN 201220365655U CN 202677706 U CN202677706 U CN 202677706U
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Abstract
The utility model discloses a gasification methanol simulation training platform, which comprises a training device and a control platform, wherein the training device comprises a coking furnace, a gas-liquid separator, a gas primary cooling tower CO conversion unit, a methanol synthesis and refining unit and other equipment which are sequentially connected through a process pipeline; a valve and a pump body used for measurement and control are arranged on the process pipeline; the control platform comprises an upper computer provided with a simulation system, a distributed control system (DCS) and a display instrument; the DCS is used for receiving data calculated through a mathematical model in the simulation system and outputting a control signal to the valve and the pump body through an input/output (I/O) module; the upper computer is used for receiving the state information of the valve and the pump body, establishing a data model and calculating the process parameters; and the display instrument is used for displaying instantaneous values of the process parameters on site. The gasification methanol simulation training platform has high practicality and operability, organically combines the actual operation and computer simulation and better fulfills the theory and practice integrated teaching aim.
Description
Technical field
The utility model relates to a kind of actual load and puts the simulation and training platform, more specifically, relates to a kind of for coal gasification methyl alcohol experience system processed.
Background technology
Methyl alcohol is a kind of important basic organic chemical industry product, at many industrial sectors such as chemical industry, medicine, light textile, national defence extensive use is arranged.In addition, methyl alcohol is again a kind of good organic solvent, is the important source material of the energy of new generation, is a kind of inflammable liquid, has good burning performance, can be applied in transportation, industry, kitchen and the fuel for power generation.
Coal gasification methyl alcohol processed is industrial the most frequently used process for methanol production, also is one of important content of the teaching of all kinds of universities and colleges chemical and relevant speciality and Special Technique Training.Adopt traditionally small-sized actual training device that the student is carried out skills training, realize normal driving, stable operation but be difficult to veritably process units is transplanted to the practice teaching chamber, understanding and the practice opportunity of the whole flow process of plant produced is provided for the student.This is that cost is higher because actual driving relates to a lot of practical problemss such as raw material and plant maintenance on the one hand, and general universities and colleges can not continue to provide this part fund; Even allow on the other hand the student drive to move, the product percent of pass of output is also very low, does not reach commercial degree, and student knowledge level and manipulative ability are uneven after all, and input is difficult to obtain income.In addition, safety and " waste gas, waste water, waste residue " emission problem in the device actual moving process are outstanding, and the facility of common college teaching Training Room this respect is all perfect not.In recent years, computer simulation system is introduced in the skills training of all kinds of universities and colleges in a large number, namely controls environment with computing machine analog D CS, replaces truly process units with the real-time dynamic mathematical models of wherein moving, and the student is carried out the operation training of actual training device.But also there are a lot of drawbacks in this analogue system, this system can only show or simulation training with the form of process chart mostly, the student can only see equipment roughly profile and main material trend, intuitive is poor, can not see the overall picture of process units, the through engineering approaches concept is not outstanding, can't simulate actual startup procedure, can not give full play to student's enthusiasm, be difficult to allow them expect that to former the whole production run of product has deep impression to reach clearly understanding, has affected the cultivation of student to cognition, perception and the practical operation technical ability of production run.In order to improve the graduate knowledge of chemical, technical ability and quality, realization school docks with " zero distance " of enterprise, is necessary very much to build the coal gasification methyl alcohol experience system processed of a kind of practical operation and Computer Simulation combination.
The utility model content
For above-mentioned prior art, the utility model provides a kind of coal gasification methyl alcohol experience system processed, has stronger practicality and operability, and practical operation and Computer Simulation are combined, and has realized better the teaching purpose of Theory and Practice integration.
In order to solve the problems of the technologies described above, the technical scheme that the utility model coal gasification methyl alcohol simulation and training processed platform is achieved is: comprise actual training device and control platform, described actual training device comprises successively that the coking furnace, gas-liquid separator, gas primary cool tower, ammoniacal liquor defecator, ammonia vessel, tar medial launder, tar groove, electrical tar precipitator, cooling oil wash naphthalene tower, the ammonia that are connected by process pipe are washed desulfurizer, desulfurizer, final cooling tower, taken off the benzene scrubbing tower, absorption tower, regenerating column, CO converter unit and methyl alcohol is synthetic and refined unit; Described process pipe is provided with for the valve of observing and controlling and the pump housing, described control platform comprises: host computer, DCS control system and Displaying Meter that analogue system is installed, valve on the process pipe and the pump housing all with described host computer be connected the DCS control system and be connected, described Displaying Meter is connected with described host computer.
The utility model coal gasification methyl alcohol simulation and training processed platform, wherein: described DCS control system is used for receiving the data that analogue system draws by the mathematical model calculation, and exports control signal to valve and the pump housing by the IO module of DCS control system; The host computer that analogue system is installed be used for to receive the process conditions of valve and pump housing quantity of state and setting on the process pipeline that the user sets and determined relationship according to demand thereof, in the experimentation, change along with each valve and valve body quantity of state and process conditions, analogue system calculates parameter value corresponding under the various conditions automatically, then result of calculation is sent to DCS control system and Displaying Meter; Described Displaying Meter is used for the instantaneous value of on-the-spot displays temperature, pressure, liquid level and flow.
Compared with prior art, the beneficial effects of the utility model are:
The designed coal gasification methyl alcohol actual training device processed of the utility model is formed by the actual equipment therefor scaled down of factory, technological process and apparatus structure all are consistent substantially with factory, not only can carry out the driving of material object material but also can show by computer simulation system feedback controling equipment instrument, be conducive to produce the higher product of qualification rate, realize the cash turnover utilization.Utilize the utility model that the student is carried out skills training, can allow the student recognize that conscientiously the formation of true chemical production device reaches roughly overview, improved integral body understanding and the direct feel of student to coal gasification methanol device processed, strengthened student's practical operation level, cultivate student's collaboration capabilities and sense of community, satisfied better the requirement of enterprise to pre-job training.
Description of drawings
Fig. 1 is the utility model coal gasification methyl alcohol training platform processed process flow diagram;
Fig. 2 is actual training device, DCS control system and analogue system interaction relationship schematic diagram;
Fig. 3 is that coal gasification methyl alcohol actual load processed is put simulation and training bracket signal transmission main flow chart.
Fig. 4 is that the utility model embodiment calculates gasholder of Mond gas height parameter process schematic diagram.
Among the figure:
1-coking furnace 2-gas-liquid separator 3-gas primary cool tower 4-ammoniacal liquor defecator
5-ammonia vessel 6-tar medial launder 7-tar groove 8-electrical tar precipitator
9-cooling oil wash naphthalene tower 10-ammonia is washed desulfurizer 11-desulfurizer 12-final cooling tower
13-takes off benzene scrubbing tower 14-absorption tower 15-regenerating column 16-CO converter unit
17-methyl alcohol synthesizes and refined unit.
Embodiment
Below in conjunction with embodiment the utility model is described in further detail.
A kind of coal gasification of the utility model methyl alcohol simulation and training processed platform comprises actual training device and control platform.
As shown in Figure 1, described actual training device comprise successively the coking furnace 1, gas-liquid separator 2, gas primary cool tower 3, ammoniacal liquor defecator 4, ammonia vessel 5, tar medial launder 6, tar groove 7, electrical tar precipitator 8, cooling oil wash naphthalene tower 9, the ammonia that are connected by process pipe wash desulfurizer 10, desulfurizer 11, final cooling tower 12, take off benzene scrubbing tower 13, absorption tower 14, regenerating column 15, CO converter unit 16 and methyl alcohol synthetic with refined unit 17; Described process pipe is provided with for the valve of observing and controlling and the pump housing.All devices all is to form according to actual full-scale plant scaled down.In concrete implementation process, can determine each instrument size according to the actual conditions in selected real training place, the luggage of going forward side by side is put the construction drawing designs such as framework and equipment layout.To connect into a whole set of actual training device with process pipe between each equipment according to process chart, process pipe adopts flange to be connected with equipment room, pipe fitting such as the employings such as elbow, threeway in the pipeline are welded to connect, valve in the pipeline adopts respectively welding according to selected valve kind or is threaded, and the chemical instruments in the pipeline adopt respectively welding according to selected different types of instrument or are threaded.Certainly, connected mode is not limited to above-mentioned several, according to on-site actual situations, also can adopt other connected mode.Various job specificationss in strict accordance with chemical plant installations in the work progress are carried out, and guarantee that actual training device is in full accord with true chemical production device.
In the real training process, raw gas from coking furnace 1, with tar and ammoniacal liquor along inhaling gas piping to gas-liquid separator 2, raw gas enters gas primary cool tower 3 after the gas-liquid separation, gas primary cool tower 3 is the indirect gas coolers of multitube distance muitishell standpipe, its effect is cooling and separates out part moisture, but the condensed fluid iterative cycles of discharging uses, redundance is sent into ammoniacal liquor defecator 4, isolated ammoniacal liquor enters ammonia vessel 5, further isolate tar to tar medial launder 6, when reaching certain liquid level, with the tar pump it is delivered to tar groove 7.The remainder that ammoniacal liquor defecator 4 has separated ammoniacal liquor enters electrical tar precipitator 8, deliver to cooling oil wash naphthalene tower 9 after removing the tar fog of wherein carrying secretly, wash desulfurizer 10 and remove wherein sulfur-bearing composition sulfuretted hydrogen and hydrogen cyanide except entering ammonia behind the naphthalene, then enter final cooling tower 12 and be cooled to room temperature and enter again and take off benzene scrubbing tower 13 benzene content is washed till 4mg/m
3Below, finally by cross absorption tower 14, regenerating column 15, CO converter unit 16, methyl alcohol is synthetic has obtained the higher methyl alcohol of purity with refined unit 17.
In the whole real training process, adopt Computer Simulation DCS operation, as shown in Figure 2, described control platform comprises: host computer, DCS control system 22 and Displaying Meter 24 that analogue system 21 is installed, valve on the process pipe and the pump housing all with described host computer be connected DCS control system 22 and be connected, described Displaying Meter 24 is connected with described host computer; Wherein: described DCS control system 22 is used for receiving the data that analogue system 21 draws by the mathematical model calculation, and exports control signal to valve and the pump housing 23 by the IO module of DCS control system 22; The host computer that analogue system 21 is installed is used for receiving the status information of valve and the pump housing 23; And according to known variables such as the quantity of state of valve and the pump housing and process conditions, a series of relationships of inputting according to the own parameter that will calculate in conjunction with the user, finally set up a complete data model, in the experimentation, change along with each quantity of state and process conditions, model calculates the parameter value under the various conditions automatically thus, then result of calculation is sent to DCS control system 22 and Displaying Meter 24; Described Displaying Meter 24 is used for the instantaneous value of on-the-spot displays temperature, pressure, liquid level and flow.
As shown in Figure 2, the control of real training process may further comprise the steps:
Step 1, described DCS control system 22 are transferred to 21 the host computer that analogue system is installed with the start and stop status signal of the valve position of valve on the process pipe that collects and the pump housing by Ethernet;
Step 2, described host computer pass to wherein analogue system with data, described analogue system receives the process conditions of valve and the pump housing 23 quantity of states and setting on the process pipeline that the user sets, and determines according to demand the relationship between valve and the pump housing 23 quantity of states and the process conditions;
In step 3, the experimentation, along with the change of each valve and valve body quantity of state and process conditions, analogue system 21 calculates the corresponding parameter value under the various conditions automatically; Analogue system 21 feeds back to DCS control system 22 by Ethernet with the above-mentioned parameter value that calculates;
One or more parameter values in temperature, pressure, liquid level and the flow in step 4, the 22 pairs of analogue system that receives 21 output variables of described DCS control system carry out PID and regulate computing; Namely, described DCS control system 22 is different according to practical function, realize the accurate control of temperature such as need, need that then the Temperature numerical that receives is carried out PID and regulate computing, in like manner, realize the accurate control of the numerical value such as pressure, liquid level, flow, then need respectively these parameter values to be carried out PID and regulate, realize fine adjustment.
The result that the PID that step 5, described DCS control system 22 draw according to step 4 regulates computing draws corresponding control signal, thereby valve and the pump housing of correspondence on the control process pipe, with practical function control, simultaneously, described DCS control system 22 generates training simulation DCS control chart;
Meanwhile, return step 3, the analogue system 21 that the result of calculation that described DCS control system 22 obtains step 4 transfers back to is as the Calculating Foundation of new round circulation, described analogue system 21 is passed to described DCS control system 22 again with the variate-value that a new round that draws circulates, thereby realize dynamically control, simultaneously, described DCS control system 22 generates training simulation DCS control chart; Until select to withdraw from training platform;
To the process of step 5, show training simulation DCS control chart in above-mentioned steps one on the display of described host computer; Described Displaying Meter 24 carries out the real-time demonstration of data.Consistent with the practical operation picture in the DCS in factory pulpit at the emulated interface that host computer shows, in DCS figure, demonstrated all process parameter value, can also operate Self controlling valve simultaneously, and the on-site manual valve has been made special mark.
In above-mentioned steps two, with the example that is calculated as of gasholder of Mond gas height parameter, the foundation of relationship (mathematical model) with finish as shown in Figure 4.
(1) flow rate calculation:
(1-1) unit sampling period gas increment: △ V
i=(F
1-F
2) ÷ 3600xk;
(1-2) gas holder residual gas volume calculates: V
1=Δ V
i
(1-3) pressure correction: V
2=V
1XP
0÷ P
1
(2) high computational: H=V
2/ D
In the formula: △ V
i-unit sampling period gas increment, unit: m
3
F
l-enter gas holder semiwater gas amount, unit: Nm
3/ h;
F
2-for going out gas holder semiwater gas amount, unit: Nm
3/ h;
In the K-systematic sampling cycle, unit: S(is second, distinguish capitalization? small letter);
V
lGas volume in the-gas holder, unit: Nm
3
V
2Gas volume under the working condition in the-gas holder, unit: m
3
P
0-atmospheric pressure, unit: kPa;
P
l-work condition state pressure, unit: kPa;
The H-gas holder height, unit, m;
D-gas holder diameter, unit: m;
As implied above, the used relationship of whole computation process is the common practise in this area, and the effect of analogue system is with F1 in the utility model, F2 is as variable, Real-Time Monitoring goes out the instantaneous value of these two variablees, then according to above-mentioned relevant relationship, provides △ V
i, V1, V2 and H value, and by Ethernet above-mentioned result of calculation is fed back to the DCS control system, the DCS control system provides corresponding control signal according to this variate-value, regulates the aperture of on-the-spot corresponding valve, thereby finishes Variable Control;
All adopt communication cable to carry out the signal transmission between the equipment such as valve site and pump 23 and DCS control system 22 and the analogue system 21, then pass through the Ethernet the transmission of data between DCS control system 22 and the analogue system 21, the main flow chart of its signal transmission as shown in Figure 3, in the real training process, at first by analogue system collection site device signal 31, such as the valve position of the equipment such as valve site and pump 23 and the signals such as start and stop state of pump.Then analogue system is carried out data operation 32, by the computing power of simulation computer, substitutes actual chemical production device with mathematical model in the calculating process, calculates corresponding variable output valve.Then analogue system is exported result of calculation 33, and the DCS control system receives result of calculation 34, and the data that receive can show and record in the DCS control system.In addition, also need in the DCS control system, to carry out PID for controllable variables such as flows and regulate computing, calculate output valve according to the difference between setting value and the instantaneous value, via the IO module signal transmission 35 in the DCS control system, last field apparatus receives and response corresponding signal 36, also its state value is transferred back in the analogue system 21 simultaneously the cycle control of beginning next round.For example when flow setting value was higher than the flow instantaneous value, the DCS control system will be sent the signal that increases valve opening by the IO module to on-the-spot electric control valve, thereby flow value is increased, and more near setting value, finishes the control procedure of controllable variable.
This actual load is put the simulation and training platform and is possessed the various accident conditions of setting and limit running status, improved the students ' analysis ability and under complex situations the ability of processing accident, utilize this training platform to carry out related process, flow process and the device structure of coal gasification methyl alcohol processed and teaching and the real training of operation to the student.In the real training process, the computing power of computer substitutes actual chemical production device, the actual chemical industry production process of real-time simulation with mathematical model.In addition, also can be by means of on-the-spot electric control valve and emulation measuring instrument, realization is carried out the operation of emulation valve and the parameter detecting of field simulation measuring instrument at the simulation process device, and the student can work in coordination with the on-the-spot multiple operation that carries out the emulation process unit of device on computers and drive; The basic capacity of the control of grasp production technology, calculating, business administration; That grasps device opens, stops, operates operation, maintenance, capability in handling accident, reaches the purpose that the student is operated real training and pre-job training.
Utilize the utility model coal gasification methyl alcohol actual load processed to put the simulation and training platform and can carry out following skills training:
Coal gas disposal system scene and simulated teaching;
Coke oven technique, structure scene and simulated teaching;
The scene of raw gas treatment process and simulated teaching;
Coal gas advanced purification process scene and simulated teaching;
The scene of synthetic gas conversion process and simulated teaching;
The scene of methanol synthetizing technology and simulated teaching;
The understanding of CO shift-converter and real training;
The understanding of packed tower and plate column and real training;
The understanding of rectification column, absorption tower and extraction column and real training etc.
Can allow in the real training process unlatching that the student operates manual switch valve, variable valve and various moving equipment at the scene with stop, also can be on the interface, pulpit the variation tendency etc. of observation site instrument valve state, various processing parameter and process curve, critical data.In addition, the open and close state that the teacher also can be by adjusting each valve and aperture size etc. arrange various accidents openly, and training of students is to judgement and the processing power of accident.
In sum, the actual load of the utility model coal gasification methyl alcohol processed is put the simulation and training platform practical operation and Computer Simulation is organically combined, can allow the student recognize that conscientiously the formation of true chemical production device reaches roughly overview, improved integral body understanding and the direct feel of student to coal gasification methanol device processed, strengthened student's practical operation level, cultivate student's collaboration capabilities and sense of community, satisfied better the requirement of enterprise to pre-job training.
Although the above is described the utility model in conjunction with figure; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment only is schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; in the situation that do not break away from the utility model aim, can also make a lot of distortion, these all belong within the protection of the present utility model.
Claims (4)
1. coal gasification methyl alcohol simulation and training processed platform, it is characterized in that, comprise actual training device and control platform, described actual training device comprises the coking furnace (1) that is connected by process pipe successively, gas-liquid separator (2), gas primary cool tower (3), ammoniacal liquor defecator (4), ammonia vessel (5), tar medial launder (6), tar groove (7), electrical tar precipitator (8), cooling oil wash naphthalene tower (9), ammonia is washed desulfurizer (10), desulfurizer (11), final cooling tower (12), take off benzene scrubbing tower (13), absorption tower (14), regenerating column (15), CO converter unit (16) and methyl alcohol synthesize and refined unit (17); Described process pipe is provided with for the valve of observing and controlling and the pump housing,
Described control platform comprises: host computer, DCS control system (22) and Displaying Meter (24) that analogue system (21) are installed, valve on the process pipe and the pump housing all with described host computer be connected DCS control system (22) and be connected, described Displaying Meter (24) is connected with described host computer.
2. described coal gasification methyl alcohol simulation and training processed platform according to claim 1, it is characterized in that, described DCS control system (22) is used for receiving the data that analogue system (21) draws by the mathematical model calculation, and exports control signal to valve and the pump housing (23) by the IO module of DCS control system (22).
3. described coal gasification methyl alcohol simulation and training processed platform according to claim 1, it is characterized in that, the host computer that analogue system (21) is installed be used for to receive the process conditions of valve and the pump housing (23) quantity of state and setting on the process pipeline that the user sets and determined relationship according to demand thereof, in the experimentation, change along with each valve and valve body quantity of state and process conditions, analogue system (21) calculates parameter value corresponding under the various conditions automatically, then result of calculation is sent to DCS control system and Displaying Meter;
4. described coal gasification methyl alcohol simulation and training processed platform according to claim 1 is characterized in that, described Displaying Meter is used for the instantaneous value of temperature, pressure, liquid level and the flow of displaying scene.
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| CN 201220365655 CN202677706U (en) | 2012-07-26 | 2012-07-26 | Gasification methanol simulation training platform |
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| CN 201220365655 CN202677706U (en) | 2012-07-26 | 2012-07-26 | Gasification methanol simulation training platform |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102810283A (en) * | 2012-07-26 | 2012-12-05 | 天津津大莱博科技有限公司 | Coal gasification methanol simulation training platform and control method thereof |
| CN104086368A (en) * | 2014-07-23 | 2014-10-08 | 北京众联盛化工工程有限公司 | Method for regulating H/C ratio in preparation of methanol by use of coke oven gas |
| CN105670707A (en) * | 2016-01-25 | 2016-06-15 | 神木县三江煤化工有限责任公司 | Automatic cycle device and method for gas washing water (ammonia water) |
-
2012
- 2012-07-26 CN CN 201220365655 patent/CN202677706U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102810283A (en) * | 2012-07-26 | 2012-12-05 | 天津津大莱博科技有限公司 | Coal gasification methanol simulation training platform and control method thereof |
| CN104086368A (en) * | 2014-07-23 | 2014-10-08 | 北京众联盛化工工程有限公司 | Method for regulating H/C ratio in preparation of methanol by use of coke oven gas |
| CN105670707A (en) * | 2016-01-25 | 2016-06-15 | 神木县三江煤化工有限责任公司 | Automatic cycle device and method for gas washing water (ammonia water) |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20160726 |
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| CF01 | Termination of patent right due to non-payment of annual fee |